Mechanical Engineering - Thermodynamics - Discussion
Discussion Forum : Thermodynamics - Section 1 (Q.No. 22)
22.
The efficiency of Stirling cycle is __________ Carnot cycle.
Discussion:
58 comments Page 1 of 6.
Vijay said:
8 years ago
The Carnot cycle, which is a theoretical rather than a practical cycle, has the maximum possible efficiency of any cycle. There is a theoretical Stirling cycle that is also reversible, which means that it would have the same efficiency as the Carnot cycle. However, neither cycle can be realized in the real world, so a real Stirling cycle will have a lower efficiency than the theoretical Carnot cycle.
Dwaipayan said:
7 years ago
Only when regeration is employed. If the heat rejection during constant volume process is consumed wholly in the heat addition (also const. Vol) process, needless to mention, both being reversible, then the area under heat rejection curve and that for heat addition curve are congruous. This will give the efficiency [1-(T2/T1)]. T2 the lowest temp of the cycle and T1 the highest one.
Ashish patel said:
6 years ago
The efficiency of the Stirling cycle is as same as the Carnot cycle efficiency.
Practically it is not that easy to build a Heat Exchanger to operate continuously at that much high temperatures. This is the major difficulty in the Stirling Engines. So these became obsolete after the introduction of an Otto cycle and the diesel Cycles.
Practically it is not that easy to build a Heat Exchanger to operate continuously at that much high temperatures. This is the major difficulty in the Stirling Engines. So these became obsolete after the introduction of an Otto cycle and the diesel Cycles.
Bikram tripathy said:
1 decade ago
The efficiency of stirling cycle is less than carnot cycle because the questions not given at which temperature limit. Means if the input temperature is same for both the cycle then the efficiency is same for both the cycle and it must be in reversible condition.
Syed Ehtisham Ali said:
1 year ago
The efficiency of Stirling cycle is Lesser than Carnot cycle (which is an ideal one).
Three power producing cycles have been so far known that include two isothermal processes, namely, Carnot, Stirling, and Ericsson.
Three power producing cycles have been so far known that include two isothermal processes, namely, Carnot, Stirling, and Ericsson.
(2)
Shivangi said:
6 years ago
Due to heat transfer at constant volume processes, the efficiency of the Stirling cycle is less than that of the Carnot cycle. But the regenerative Stirling cycle has the same efficiency as the Carnot cycle.
ROHIT KUMAR said:
1 decade ago
The efficiency of Stirling cycle is equal to Carnot cycle. This is due to the fact that the cycle is reversible and all reversible cycles have the same efficiency.
Ex: Carnot, Stirling, Ericsson.
Ex: Carnot, Stirling, Ericsson.
AJAY KUMAR said:
6 years ago
- Carnot cycle.
Efficiency = 1-T2/T1.
- Stirling cycle.
Efficiency = 1-T2/T1.
As you saw, the efficiency formula of both cycles are same, so efficiency of Carnot and Stirling cycle is equal.
Efficiency = 1-T2/T1.
- Stirling cycle.
Efficiency = 1-T2/T1.
As you saw, the efficiency formula of both cycles are same, so efficiency of Carnot and Stirling cycle is equal.
(1)
Shivam said:
9 years ago
Stirling cycle has less efficiency than Carnot because of heat transfer at constant volume. However, if regenerative Stirling cycle is considered then the efficiency of two is equal.
Sanjeev said:
8 years ago
Stirling cycle efficiency would be equal to carnot cycle efficiency, when there is complete (ideal) regeneration of heat being rejected at costant volume process.
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